Pith Number

pith:GEUUSNEZ

pith:2019:GEUUSNEZ4BBH5TJME3FMJXPCPG

not attested not anchored not stored refs pending

Numerical solution of scattering problems using a Riemann--Hilbert formulation

Elena Luca, Stefan G. Llewellyn Smith

arxiv:1904.03762 v1 · 2019-04-07 · math.NA · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GEUUSNEZ4BBH5TJME3FMJXPCPG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:49:08.205007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3129493499e0427ecd2c26cac4dde27992af08f0c3fd447e2eb1fca818c64dd4

Aliases

arxiv: 1904.03762 · arxiv_version: 1904.03762v1 · doi: 10.48550/arxiv.1904.03762 · pith_short_12: GEUUSNEZ4BBH · pith_short_16: GEUUSNEZ4BBH5TJM · pith_short_8: GEUUSNEZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GEUUSNEZ4BBH5TJME3FMJXPCPG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3129493499e0427ecd2c26cac4dde27992af08f0c3fd447e2eb1fca818c64dd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22b96e89aeddceb66128c060212afe82b14c38e76c5444acdd9c3b9c3f6d78d9",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-07T22:31:43Z",
    "title_canon_sha256": "a39ecf48de55fc405fa9319cb8baa65b3126b2679b00622bea8243b6af46dbad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03762",
    "kind": "arxiv",
    "version": 1
  }
}